A method of operating a computer-controlled first device for establishing a secure data communication with a computer-controlled second device in a passenger transportation arrangement distributed control system includes: generating an encryption key including a public and private key pair; creating credentials (e.g. X.509 certificate) based on the generated encryption key; preparing a certificate signing request CSR and dispatching the CSR via a secured data communication path to a certificate authority CA that is based on a public key infrastructure PKI operated by the passenger transportation arrangement operator; receiving the certificate from the CA with a signature using a private key held secret by the operator; establishing the secure data communication with the second device by transmitting the credentials to the second device, wherein the second device accepts establishing the secure data communication upon verification of the signature of the credentials executed using a public key of the operator.

Floor content information of an elevator is described. According to an embodiment, a device is disclosed, comprising: a processor; a storage comprising a set of instructions; wherein the set of instructions cause the processor to: Receive a destination floor of the elevator; Receive information describing content of the destination floor, wherein the content identifies the content located within the destination floor; Based on the destination floor and the information describing the content of the destination floor, display a data notification to at least one user using the elevator travelling to the destination floor. According to other embodiments, an elevator, a method and a computer program product is described along with the features of the device.

The method comprises measuring the shaft with measuring equipment from a movable transport platform, whereby the form of the shaft and the position of the fastening points for the guide rails is determined based on the information received in the measurement phase, attaching fastening brackets to the guide rail elements and adjusting the fastening brackets based on the measurement results before the installation of the guide rails takes place so that the guide rail elements provided with the fastening brackets can be lifted in the shaft and attached to the fastening points without further adjustment of the fastening brackets.

To provide an elevator 3D data processing device that can align 3D data of a shaft without requiring a special marker. The elevator 3D data processing device includes a reference straight line extracting unit that extracts, from 3D data of a shaft of an elevator, a reference straight line of the shaft, a first aligning unit that aligns the 3D data of the shaft according to the reference straight line extracted by the reference straight line extracting unit, a reference plane extracting unit that extracts a reference plane of the shaft from the 3D data aligned by the first aligning unit, and a second aligning unit that aligns, according to the reference plane extracted by the reference plane extracting unit, the 3D data aligned by the first aligning unit.

An installation device used in an elevator shaft has a first carrier with first and second carrier ends, a support element pivotably arranged on the first carrier end, and a holding apparatus holding a displacement apparatus by which installation material can be displaced in the elevator shaft. When the installation device is in an installation position, the first carrier end is supported against a threshold of an elevator shaft door opening by the support element and the second carrier end is supported at least indirectly against a shaft wall that is opposite the door opening. The holding apparatus is arranged on an upper side of the installation device in the installation position such that the displacement apparatus is supported from above on the holding apparatus.

An installation device used in an elevator shaft has a first carrier with first and second carrier ends, a support element pivotably arranged on the first carrier end, and a holding apparatus holding a displacement apparatus by which installation material can be displaced in the elevator shaft. When the installation device is in an installation position, the first carrier end is supported against a threshold of an elevator shaft door opening by the support element and the second carrier end is supported at least indirectly against a shaft wall that is opposite the door opening. The holding apparatus is arranged on an upper side of the installation device in the installation position such that the displacement apparatus is supported from above on the holding apparatus.

A foldable elevator structure having a plurality of members is shown having each current member sequentially attached between a preceding member and a succeeding member. This connection schema continues until the last member is attached to the first member and a completed enclosed structure is formed such that all members have been attached. In this fashion, the foldable structure is foldable between each set of two adjacent members.

A foldable elevator structure having a plurality of members is shown having each current member sequentially attached between a preceding member and a succeeding member. This connection schema continues until the last member is attached to the first member and a completed enclosed structure is formed such that all members have been attached. In this fashion, the foldable structure is foldable between each set of two adjacent members.

A positioning aid positions a nut on a guide rail of an elevator system, the guide rail being formed as a hollow rail, the hollow rail having a plurality of elongated holes arranged one behind the other in the longitudinal direction of the hollow rail in order to be fastened to a guide rail holder. The positioning aid includes an elongate fastening portion to which at least one nut is fastened and which is dimensioned such that it can be passed through one of the elongated holes together with the at least one nut and moved within the hollow rail. The positioning aid also includes a holding portion for holding the fastening portion, the holding portion being fastened to one end of the fastening portion and being configured to be wider than the elongated hole.

A system and method for adjustably positioning elevator guide rail. The system includes: an adjustment device arranged on a moving platform and having a clamping portion and a powering portion, the clamping portion being arranged to be capable of clamping an elevator guide rail to be installed through a power output from the powering portion and moving in a first, a second and/or a third directions, and the moving platform being capable of moving up and down in the first direction; a detection device arranged to detect current movement characteristics of the clamping portion when the elevator guide rail is not clamped or has been clamped by the clamping portion; and a control device connected to the detection device and the adjustment device, and arranged to adjust the position of the clamping portion in place by controlling the powering portion according to the movement characteristics.